* {
    margin: 0;
    padding: 0;
}

body {
    height: 100%;
    background-color: #161823;
}

.d-inline-block {
    display: inline-block;
}

.b {
    border: 1px red solid;
}

.h-100 {
    height: 100%;
}

.w-100 {
    width: 100%;
}

.w-50 {
    width: 50%;
}

.float-left {
    float: left;
}

.m-auto {
    margin: auto;
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.white {
    color: white;
}

.red {
    color: red;
}

.color1 {
    color: cadetblue;
}

.color2 {
    color: chocolate;
}

.color3 {
    color: cornflowerblue;
}

.mt-2 {
    margin-top: 2px;
}

.mb-2 {
    margin-bottom: 2px;
}

.msg-p {
    font-weight: bold;
    font-size: 15px;
    font-family: "Yu Gothic";
}

.msg-a {
    font-family: "华文宋体", serif;
    font-size: 15px;
    text-decoration: none;
    text-align: right;
}
